Spring-cushion construction



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SPRNG CUSHIOIJ ONSTHC'ON.

PPUCATION HLED FEE. 5| 1919. 23 Patented June 2, 1921 2 SHEETS-SHEET 2- UNITED STATES PATENT omen.

ELMER S. BLLS, OF CHICAGO, ILLINOS, ASSIGNOR, :BY DIRECT AND MESNE ASSIGN- MENTS, TO HARMONY SPRING CUSHION CO., A CORPORATION OF ILLINOIS.

SPRING-CUSHION CONSTRUCTION.

Application filed February 5, 1919.

To all lw from t may concern:

Be it known that ELMER S. BILLs, a citizen of the United States, and a resident of Chicago, in the county of Coolr and State of Illinois, have invented certain new and useiul improvements in Spring-Cushion Construction, of which the following is a specification.

My invention relates to spring cushion construction and is in the nature of an improvement upon the invention set forth in cri-pending application terial No. 247,316. rThe primary object of the present invention is to provide an improved combination or cushion springs and spring pockets wherek by the manufacture oi' cushions may be `simpiiiied and cheapcned. Another object is to combine in a cushion the known advantages of flexibile spring pockets with the advantages of spring construction and compact arrangement set iorth in said co-pending application. A further object is the provision of an improved combination of coiled springs and pockets whereby the seams oi the pockets converge and are secured together at a common center. A still further object lies in the provision of an improved combination and arrangement of springs and pockets wherein said pockets are connected into a series comprising a single spring containing envelop which may be folded to form a complete cushion the springs of which are very compactly arranged. Another object is the provision ot an improved type ot' envelop for cushion springs in which are embodied simplicity in construction and facility in handling.

Cther objects and advantages of the vention will appear from the following description` taken in conjunction with the accompanying drawings which term a part oi' this specification and illustrate the preferred embodiment of the invention.

in the drawings:

Figure 1 is a perspective view of a spring cushion constructed in accordance with the principles of the present invention, the upper surface showing diagrammatically only the arrangement oi2 the springs and the disposition of the upper portions of a band and a strip which are sewed together, surround each of the springs,'and extend throughout the cushion.

F ig. 2 is a fragmentary corner view in Speciicaton of Letters Patent.

Patented June 21, 1921.

serial No. 275,060.

perspective of the actual assembly of the cushion, showing the disposition of the seams of the envelop.

F 1g. 3 is a top plan view or" a unit for the construction of cushions from springs poclreted in accordance with this invention.

Fig. 4 illustrates in perspective the construction o my improved envelop and the mode of assembling the springs therein, one of the springs being shown in position for insertion into its pocket.

Referring to Fig. e, numeral 10 indicates generally a fiat band of cloth or like material upon which is 'ulled at regularly spaced intervals a strip generally indicated at 11. The strip may be tulled upon the pand in any desired manner, though I prefer to do this by initially folding theA strip transversely along` the lines 12, sewing it to the band along the regularly spaceditransverse lines 13, and then forming near the longitudinal edges of the strip, midway between the stitchings 13, the transversely eX tending plaits 14. Fig. i shows four complete spring' receiving poclrets 15, 16, 17 and 18, made from the band 10 and strip 11 and forming a connected series which will be herein termed an envelop 19. Pocket 18 is open at both ends and shows the condition of a pocket when the strip is iirst stitched transversely to the band; at the lower end or" pocket 17 are shown the folds made in forming plait 14e; at the lower end of pocket 16 the plait has been formed and the longitudinal edges of the band and strip sewed together along line 21 to close the bottom ci the pocket and form an edge seam generally indicated at 22. A prism-shaped coiled spring 23, of the type set forth in my said co-pending application, is provided tor each pocket of the envelop. in end contour this spring is an isosceles right triangle having the 900 apex angle 24 and the 4:50 base angles 25 and 26. Cne of these springs is shown fragmentarily in dotted lines in pocket .l5 of Fig. 4, which poclrethas been compietely closed by the plaiting of the upper edge ot' strip 11 and the sewing together of the upper longitudinal edges of the band and strip to iorm the upper edge seam 22. The springs 23 are preferably under a slight compression when inclosed in the envelop pockets, and their tendency to expand draws the seam 22 at its plaited portion inwardly across the end oit the spring substantially to the axis thereof, seen in 2, 3 and i, the seam, however9 intersecting the hase angles 25 and 2o olf the spring; and at these points standing in the plane oll the maior portion o' the flat hand 10,. While the tendency ot the spring to e and vithin the pocket, and the consequent pull ener-ted across its apen hy strip l1 draws a small portion or hand 10 over the ends oit each spring, the greater portion or the hand remains in ilat, vertical, anrularly relater planes when envelop 19 is to ded up to torni the cushion.

Fig. 8 illustrates in plan view a fourspring unit which may he formed from the envelop shown in 1, though l prei'cr to corr-struct cushions hy the use o'i a single long envelop such, -tor example that shown in Figs, l and 2, containing a long` connected series of many poclretefl springs, forty-eight .in this instance. it the left or pocket 18 and at the right of? pocket 15 in Fig. l it will he seen that parallel rows ot ty ing l are provided between adjacent pookn ets. Th e parallel rows of stitching may .he placed between any desired pair et adjacent pockets, and they are spaced from each other s ightly in order that the strip and hand may he out across between these pockets, rllhus a series oii four pocketed sin-iuris he cut from much longer envelop for the :tor-mation of the unit shown in Fin'. l, ln the latter ligure the meeting;` hase edges oi pockets 15 and 1S are stitched together as at 26 to holt. t1

ne tour pockets 5, 1G, 17 und 18 and their springs in the unit formation.

` ed form or" cushion construction is illustrated in Fies. 1` 2 and l- Wheresingle connected t" in an envelop c mprising sci es ot p cketed springs is ioloed upon i i to torin the Whole spil body; s"-.iiigs ittino ,if tiust each other in dat i contact to o a solid body oi sprin f l' desired size may he made in this manner, the size determining' the nuniher or springs and the ioni/*th oiQ envelop to he e ed. filo shoufv the deposition in vertical planes ci.' the major portions oif hand i() and strip l1 and their continuity thro-ui 1iout a complej yfushion, the hand and strip hure been sho fn diagraininaticallv in the upper surface ot 1, the seams 9,2 hemp disre, ned. Also, ror clear under- `l spring; arrangement, tno

and that the lines of stitching; 13 meet the lons 22 and lines ot sewing 21 at these C rhus the strongest portions of the ""elop converge a common center 27 wherever pluralityT or these hase angles it each of these centers 2T a tie meina stout cord, is used to otherwise Yfasten together the four or eight portions ot' seam 22 that so converge, the result being that the poclreted springs y iirznly and compactly held together the ena/'elop 19 and about Si) sewed through the trames this cord heinfg preferably passed th: '"i each center 27 adjacent the frames. Ui i. the We t ot person sitting` on tie cushion the springs ailected by the Weight are compressed with relation to ad- V spilt lhe envelop 19 quiets the passage of the coils oi"- one spring across ,se of others, yields with the springs, pres atrial 1lsending` otl the central portions of" the springsl and holds their ends trom .i or intcrengagement.

C; cushion construction, the with single l: nd disposed iu v related planes that ein oi-.ch other long ps illel lios i d comprise one side of a continuous envelop Jjor the springs ot cusl ion o a complementary onprising a strip l ed thereon at regueo intervals along; its longitudil seweil to the hand along` its one' transverse lines between io to torni spring' pockets, -snaied coiled sprinci having o? an isosceles right triin each pocket With its cushion construction, the

upon the hand secured thereto i its edges and along'regularly spaced transverse lines to form springJ pockets, and a prism-shaped coiled spring having the end with a flat hand, of a strip.

'contour ot an isosceles right triangle positioned in each pocket with its base in flat contact With said band.

l. ln a spring cushion, the combination of; a continuous envelop comprising a substantially flat band, and a strip tulled upon the band and sewed thereto to constitute a series ot parallel connected spring receiving pockets; a prism-shaped coiled spring having the end contour of an isosceles ri ht triangle positioned in each pocket with s base in lint contact with, said band; scid envelop being lfolded on parallel lines to bring said springs into compact association; and a pair of spaced parallel traine members surrounding the folded envelop and secured to said band.

5. The combination of a substantially Hat iand, a strip served to the band along transverse lines to define parallel spring receiving pockets and alongV its edges to close the ends of said pockets and form a seam, said band and striA forming an attenuated envelop, a prism-shaped coiled spring in each pocket, said envelop being folded to bring the springs and pockets into close association with plurality ot the folds of said seam meeting at a common center, and means for securing said seams together at said center. G. The combination With a plurality of coiled springs angular in end contour and grouped to bring one angle of each into close sociation with a4 angle of eacn of the others common center, of a pocket for each spring comprising a seam traversing the end oli the spring, said end seams meeting t said common center, and means for securing said seams together at said center. 7. The combination vvith a plurality of identical coiled springs each having the end contour of an isosceles right triangle, of a pocket for each comprising a band and a strip served together to term a seam traversing the end of the spring and intersecting the angles thereof, said springs and pockets being grouped with one base angle ol each meeting a similar angle of each of others about a common center, and f for securing said end seams together center. o. ie combination with a plurality of identical "oiled springs each having the end contour ot an isosceles right triangle, of a pocket 'for each comprising a band and a strip served together to form a traversing the end of the spring and intersecting the base ang-lcs thereof, said springs and pockets being grouped with one base angle ot each meeting a similar angle of each of the others about a common center, and means for securing said end seams together at said center, said pockets being joined along their longitudinal edges to i'orm a continuous spring-holding envelop which is folded at said common center.

9, The combination ol an envelop comprising a band, and a strip tulled thereon, stitched to the band transversely and sevved thereto along its longitudinal edges to form a series or slfiring-receiving pockets; and a coiled spring in each ot the pockets; said envelop being folded to group the pocketed springs compactly about a common center, the seams ot said stitching and sewing in- Jaersecting at said center.

l0. rlhe combination of an envelop coinprising a substantially flat band, and a strip ulled thereon, stitched to the band along transverse lines and sevved thereto along its longitudinal edges to form a series of springreceiving poclrcts and edge and transverse seams; a prism-shaped coiled spring triangular cross-section positioned in each pocket with its base in flat Contact with the band; said envelop being Aolded to group one base anode of each of a plurality of said springs about a common center, said edge and transverse seams intersecting each other at said center; and a tie member at said cen ter securing the group of springs together by connection with said intersecting seams.

il. rlie combination of an envelop comprising a .substantially flat band, and a strip ulled thereon, stitched to the band along transverse lines and sewed thereto along its longitudinal edges to form a series of springreceiving pockets and edge and transverse seams; a prism-:shaped coiled spring having the end contour of -an isosceles right triangle positioned in each pocket with its base in fiat contact with the band; said envelop being folded to group one base angle et @ach ot a plurality oli' said springs about a common center; and a tie member at said center securing the group of springs together by connection with said intersecting seams.

ln a spring cushion, the combination with a plurality oli coiled springs, of an envelop therefor comprising a band and a strip which are served together to form longr tudinal edge seams7 said envelop being tolded to cause folded portions of said edge seams to converge at a common center, and a tie member securing said seams together at said center.

ELMER S. BILLS.

llO 

